So one question is why is it called double visions? At the start of the season, I assumed it would be another situation wher there'd be 2 of the same character at the same time similar to the 1955 sequence in part II. We know marty goes back to 1931 in the next epsiode, will it be at a time he was already there? It does seem to be further in time as from the preview emmett and edna are at least dating.

Looks like we'll have to rescue FCB or at least get info on how to build the flux capacitor from him. But the delorean seems damaged beyond repair? Can marty even drive it to get it up to 88 MPH?

Also episode 5 has the premise of a cinematic chase through hill valley's past, present, and future. I kind of figured this would mean someone gets a time machine and doc and marty need to capture them similar to the ride. Will this be a 1931 character or will it be another case of the main characters succeeding in their plan only to return to the present and find everythings not quite right?